class Pmd < Formula
  desc "Source code analyzer for Java, JavaScript, and more"
  homepage "https://pmd.github.io"
  url "https://github.com/pmd/pmd/releases/download/pmd_releases/6.2.0/pmd-src-6.2.0.zip"
  sha256 "05050fc66fc05f7ce05da0e4d49c9e12a681d1a6bad0764a94c0874c556d0a9d"

  bottle do
    cellar :any_skip_relocation
    sha256 "3d39df025d87e96be861c0b5ff04c537981995988dc2134ddef8b3fcfa7eb42b" => :high_sierra
    sha256 "029e5ebb8b16fffc8239feaff2312d5e1b14cb28d4a4d41c05adfea8ae11c653" => :sierra
    sha256 "dbf599d9117d7606787743f15e083be40c8c65510d80c24ed9e972e92e4d12ac" => :el_capitan
  end

  depends_on :java => "1.8+"
  depends_on "maven" => :build

  def install
    java_user_home = buildpath/"java_user_home"
    ENV["_JAVA_OPTIONS"] = "-Duser.home=#{buildpath}/java_user_home"
    java_cache_repo = HOMEBREW_CACHE/"java_cache/.m2/repository"
    java_cache_repo.mkpath
    (java_user_home/".m2").install_symlink java_cache_repo

    (java_user_home/".m2/toolchains.xml").write <<~EOS
      <?xml version="1.0" encoding="UTF8"?>
      <toolchains>
        <toolchain>
          <type>jdk</type>
          <provides>
            <version>#{ENV["JAVA_HOME"][/((\d\.?)+)\.\d/, 1]}</version>
          </provides>
          <configuration>
            <jdkHome>#{ENV["JAVA_HOME"]}</jdkHome>
          </configuration>
        </toolchain>
        <toolchain>
          <type>jdk</type>
          <provides>
            <version>1.7</version>
          </provides>
          <configuration>
            <jdkHome>#{ENV["JAVA_HOME"]}</jdkHome>
          </configuration>
        </toolchain>
      </toolchains>
    EOS

    system "mvn", "clean", "package"

    doc.install "LICENSE", "NOTICE", "README.md"

    # The mvn package target produces a .zip with all the jars needed for PMD
    safe_system "unzip", buildpath/"pmd-dist/target/pmd-bin-#{version}.zip"
    libexec.install "pmd-bin-#{version}/bin", "pmd-bin-#{version}/lib"

    bin.install_symlink "#{libexec}/bin/run.sh" => "pmd"
    inreplace "#{libexec}/bin/run.sh", "${script_dir}/../lib", "#{libexec}/lib"
  end

  def caveats; <<~EOS
    Run with `pmd` (instead of `run.sh` as described in the documentation).
    EOS
  end

  test do
    (testpath/"java/testClass.java").write <<~EOS
      public class BrewTestClass {
        // dummy constant
        public String SOME_CONST = "foo";

        public boolean doTest () {
          return true;
        }
      }
    EOS

    system "#{bin}/pmd", "pmd", "-d", "#{testpath}/java", "-R",
      "rulesets/java/basic.xml", "-f", "textcolor", "-l", "java"
  end
end